Scroll bars on a computer display screen



FIG. 1 is a front view of a scroll bar on a computer display screen;

FIG. 2 is a front view of a second embodiment thereof;

FIG. 3 is a front view of a third embodiment thereof;

FIG. 4 is a front view of a fourth embodiment thereof;

FIG. 5 is a front view of a fifth embodiment thereof; and,

FIG. 6 is a front view of a sixth embodiment thereof.

The broken line drawing of the outline of a window in all figure views is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for scroll bars on a computer display screen, as shown and described. 